Consider a production function given by

=(,)=square root of KL

If capital is fixed at a value of=1, which of the following combinations of labor and output, described by the vector, (,) are considered to be technologicallyinefficient? (hint: think about the technology set)

1. (4, 2)

2. (5, 11/5)

3. (3, 7/4)

4. (1, 1)